Background: To explore the relationship between vitamin D levels and risk of SARS-CoV-2 infection and its severity in children and adolescents, and provide a theoretical basis for clinical practice.
Methods: The PubMed, Web of Science, Embase, MEDLINE, and Cochrane Library databases were searched for comprehensive cohort and case-control studies on the association between childhood vitamin D deficiency and the risk and prognosis of coronavirus disease-2019 (COVID-19). The search period was set from December 1, 2019, to December 31, 2023.
Eur J Haematol
January 2025